[Draft] Include instructions about renaming images

docs/sections/user-guide/uploading-data.md

@@ -1,3 +1,44 @@
 # Uploading data
 
-##
+## Image requirements
+
+Valid image formats are PNG, GIF and JPEG. Image filenames must contain a timestamp with year, month, day, hours, minutes and seconds (e.g. 20210101120000-snapshot.jpg). The timestamp in the filename makes it possible to do fast indexing of files, which is helpful when reading a large amount of images from a remote storage.
+
+## Renaming images
+
+If images filenames are not matching the requirements, the images have to be renamed before being uploaded. To automate this process, we recommend [this Python utility](https://github.com/mihow/ami-camera-utils) that renames image files based on their EXIF timestamp data. The script can recursively scan directories and renames files using the format `prefix-YYYYMMDDHHmmSS.ext`.
+
+### Install the utility
+
+First, download and install [Python](https://www.python.org/). Then try this command to make sure the installation was successful.
+
+```bash
+python --version
+```
+
+Next, install the utility.
+
+```bash
+pip install https://github.com/mihow/ami-camera-utils/archive/refs/heads/main.zip
+pip install --upgrade typer
+```
+
+Then try this command to make sure the installation was successful.
+
+```bash
+photo-renamer --help
+```
+
+### Use the utility
+
+To rename photos in a folder, use this command. Replace the dummy path with the directory containing images to rename. The script will show a confirmation prompt before proceeding.
+
+```bash
+photo-renamer "path/to/photos" --inplace
+```
+
+For more options, checkout the [utility documention](https://github.com/mihow/ami-camera-utils).
+
+### Demo
+
+Coming soon!